The inspiration for this gave me ~ThatStupidAnto with her custom made white Celestia, which I do at the moment, [link]

Here a little description (sorry for my bad bad english)

1. I had cut of her wings and this button, where her cutie mark is.2. I painted her body/eyes and cutie mark with Citadel Colors. Body: Skull White, Hoofes: Burnished Gold. CutieMark: Yellow, Burnished Gold, Shining Gold, Eyes: Chaos Black and Tentakle Pink.4. Recolor the crown and necklace with Burnished and Shining Gold5. I put on the ostrich plume in White the made her wings.6. Finished her by coiffure her hair.